Planing-machine



(No Model.) 4 Sheets-Sheet 1.

F. J. PLUMMER.

PLANING MACHINE.

No. 327,588, Patented Oct. 6, 1885.

N, PETERS. Phcln-Lunogmphar Washingtim, uc.

4 Sheets-Sheet 2.

(No Model) F. J. PLUMMER.

PLANING MACHINE.

No. 327,588. Patented Oct. 6, 1885.

( Kim? N. PETEH5, PhulwLibcgnpher. Washingion D C.

(No Model.) 4 SheetsSheet 3 F. J. PLUMMER.

PLANING MACHINE.

No. 327,588, Patented Oct. 6, 1885.

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(No Model.) 4 Sheets sheet 4. P. J. PLUMMER.

PLANING MACHINE.

No. 327,588. Patented Oct. 6, 1885.

Wfinmma 31w em iTn STATES PATENT Ormcn.

FRANK J. PLUMMER, OF BOSTON, MASSACHUSETTS.

PLANlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 327,588, dated October 6, 1885.

Application filed August 3, 1885. Serial No. 173,310. (No model.)

To aZZ whom it may concern/.-

Be it known that I, FRANK J. PLUMMER, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Planing-llIachines, of which the following is a specification.

My invention relates to planing-machines; and it consists in certain improvements in the mechanism for adjusting and driving the feedrollers of such machines, substantially as hereinafter described and claimed.

In the drawings, Figure 1 is a side viewof a portion of a planing-machine constructed according to my improvements. Fig. 2 is an end view of Fig. 1. Fig. 3 is a longitudinal Vertical section through the dotted line A A of Fig. 2. Fig. 4 is a top plan View of Fig. l.

A is the frame of the machine which supports the feedrolls and connected mechanism by which they are adjusted and operated. Upon the frame A on each side are bolted two uprights, a a, which are formed with vertical channels a a in their faces, which are opposite each to the other. These channels extend from the frame A to the top of each upward, and they are intended to adj ustably support the guideways I) b, in which the boxes of the feed-rolls move up and down.

R is the upper feed-roll, supported upon a shaft, 1', which extends through the boxes rr on each side of the frame. The boxes 1" 1" are capable of moving up and down in the guideways I) I), being fitted to the latter by a sliding fit. The guideways I) b are fitted into the channels a of the uprights a loosely, and are adjusted in place in those channels by setscrews b b, which press against the guideways b and secure them rigidly in position. The object of this adjustment of the guideways in connection with the similar adj ustmeut of the opposite guideways I) about to be described is to enable the upper feed-roll, It, to be brought into alignment with the lower feed-roll, 1t, horizontally in whatever positionthe upper feedroll maybe, elevated or lowered.

The guideways I) are adjusted in the channels a of their uprights by similar set-screws, b If; but these set-screws, instead of pressing directly against the guideways, are made to press against gibs resting against a portion of the guideways, so as to allow the latter to have a vertical movement with the feed-roll R and its elevating and lowering mechanism, as hereinafter described.

Attached to one of the guideways b of the feed-roll boxes on one side of the machine is a shaft, 8, turning in bearings s 8 cast upon said guideway. This shaft is provided at the upper end with a crank and handle, 8 secured upon it by a nut and thread, and for1ning a collar which sustains it in its bearings, and at its lower end is provided with a worm, s, which meshes with a worm-gear, 8, upon a shaft, 8". The latter extends transversely across the machine and is supported near each end in bearings 8, (see Fig. 3,) attached to the lower ends of the guideways b, which project downward inside of the frame for a considerable distance below the feed roll boxes.

Inside of the frame A, on each side, a pinion, s is attached to the shaft 8*", and these pinions engage on each side with racks on vertical bars a which extend upward against the guideways I) through slots in the lower feed-roll boxes b, through which they slide up and down freely. The shaft 8 passes through elongated slots or holes a in the frame of the machine to allow it to rise and fall with the guideways b, as hereinafter described. Each of the rack-bars s" is provided with an ear, 8, projecting across the space between the guideways b b above the box I)" of the lower feed-roll, and through a vertical hole in each of these cars extends a screwrod, 2, provided with nuts above and below the cars, by which the rods can be adjusted up and down in the latter. On the upper end of each of the screw-rods t is rigidly attached a bifurcated piece, f and from the lower side of each of the upper feedroll boxes extends downward a tongue, 1, into the bifurcation of i where it is secured by a pivot, t*, thus forming a continuous attachment between the upper feed-roll boxes and the rack-bars s on each side, which is capable of adjustment up and down by means of the nuts 15 so as to bring the axes of the feed-rolls parallel in a vertical direction, and which enables the operator to raise and lower the upper feed-roll in the gnidcways b b by turning the crank s".

ICO

On the inside of the frame on each side the lever p is connected to the former by a shaft, 19, extending across the frame, and the lever on each side passes by the lower end of the guideway b, and is connected to the latter by a pivot, 1), working loosely in a longitudinal slot in the lever.

On the outer end of each lever 17 is attached a weight, 12 The levers p can therefore be raised and lowered, and carry up and down the guideways I) with them, the latter sliding in their gibs, before described. This permits the upper feed-roll, It, to rise and fall to accommodate itself to different thicknesses of lumber passing between the feed-rolls, and

I when the guideways 11 rise or fall they carry up and down with them the shafts and vertical rack-bars s and boxes of the upper feedroll connected therewith, or conversely ,the feed-roll carries up and down all these parts, raising the Weights 19 because the worm s prevents the shaft 8 and its worm-gear s from turning.

This mechanism forms a convenient means of adjusting the upper feed-roll at any desired distance from the lower one, and allows the latter to rise above that distance as a greaterthickness of lumber may require- To drive the feed-rolls, I attach to the shaft 0" of the upper feed-roll a gear wheel, d, and upon a shaft, (2, extending across the machine, I attach another gear-wheel, d meshing with the gear d. The shaft d is support-- ed upon the frame A in boxes d d oneeach side, which boxes are secured to flanges or shelves d* 01 of the frame bybolts (Z 11 These bolts pass through vertical holes in the shelves d, which are elongated longitudinally of the machine, and the bolts are set up loosely, so as to allow the boxes d to move back and forth upon the shelves. Two links, Z Z, on each side of the machine are made with holes through them,near their ends, through which the shafts r and d are passed and fitted loosely to revolve at all times.

freely therein, and these links serve to keep the shafts a" and d at the same distance apart Thus when the upper feed roll,

It, is raised orlowered by the mechanism hereinbefore described, or by thicker or. thinner lumber passing under it, these links will move the shaft d and its supporting-boxes toward or away from the guideways b and keep the gears d and 01 in position to mesh with each other. The gear d meshes with the gear-wheel g, which in turn meshes with the gear-wheel 9 upon the axis of the lower feed-roll, and the latter is driven by a gear, 9 on its end,which projects beyond the frame of the machine. The

movement of the gear-wheel d horizontally with its boxes, as described, does not materially affect its engagement with the gearwheel g, as I make the shelves (1* slightly crowning, if necessary, and the lower faces of the boxes resting upon them of corresponding form where a great deal of motion is desired; but it will ordinarily be found unnecessary to do this.

The boxes b of thelowerfeed-roll are raised and lowered by a screw, 0,which passes through a shelf beneath them of the frame A, and permits them to be adjusted up and down with relation to the bed of the machine.

What'I claim as new and of my invention is- 1. The combination of the worm-gear 8", provided with suitable mechanism for revolving the same, the worm-wheel s", shaft 8 and pinions 3 8, attached thereto, and rack-bars s .9 connected to the boxes 1'' 1* of the upper feedroll, substantially as described.

2. In combination with the vertically rising and falling guideways b b, the worm-gear s provided with suitable mechanism for revolving the same, the worm-wheel s, shaft 8", and pinions s 3, attached thereto, and rack-bars s 3 connected to the boxes 1 r of the upper feed-roll, substantially as described.

3. The combination of the wormgear 8, provided with suitable mechanism for revolving the same, the worm-wheel s, shaft 8 and pinions 5; 8, attached thereto, and rack-bars s 8, adj ustab'ly connected to the boxes of the upper feed-roll by the screw-rods t t and nuts t t, substantially as described.

4. The combination of the feed-rolls R R, their boxes 1" b the guidewaysb b, the channeled uprights a a, and the adjusting set screws b b, substantially as described.

5. The combination of the vertically-moving upper feed-roll, R, and its shaft 1, pinion (1, links Z l, and longitudinally-moving shaft d and pinion 01, substantially as described.

6. The combination of the vertically-mow ing upper feed-roll, R, and its shaft 1', pinion (1, links 12, and longitudinally-moving shaft (1 and pinion d,-attached thereto and revolving in bearings upon each side of the frame A, substantially as described.

FRANK J. PLUMMER.

WVitnesses:

DAVID HALL R1012, N. I. OOKINGTON. 

